ABB PST, Installation And Maintenance Manual

Page: 41 / 180

Low Voltage Products & Systems 41
ABB Inc. • 888-385-1221 • www.abb-control.com AC 1006.9 - 5/03
Chapter 5 - Connection
5:2.2.1 External Bypass contactor
An external by-pass contactor can be used for softstarter sizes PST30...300
(built in for PSTB370...1050).
Connect the contactor to terminals B1, B2 and B3 on the line side and terminals
2T1, 4T2 and 6T3 on the motor side.
The terminal markings are printed on the front label.
Do not use terminals B1, B2 or B3 for the “Inside Delta” connection. The
current measurement will be wrong.
1
100-250V
Stop
Start
In0
In1
Vc
50/60 Hz
2 3
4
5
6
7
8
9
10
Vp
Vp
11
K4
12
13
14
Vn
15
16
K5
17
18
19
K6
20
B1
B2
B3
1SFC132049F0001
Figure 4: External bypass contactor
connection
M8
M8
M10
M12
9 Nm - 80 lb.in
M8
6 Nm - 53 lb.in
1 x 6 ...... 70 mm
2 x 6 ...... 35 mm
1 x 6 ...... 70 mm
2 x 6 ...... 35 mm
A WG 1...8
2
2
2
2
4 mm (0.16")
14 mm
(0.56")
Max. 24mm
(0.95")
Max. 32mm
(1.26")
Max. 30mm
(1.18")
Max. 10mm
(0.39")
Max. 45mm
(1.77")
Max. 47mm
(1.85")
Max. 10mm
(0.39")
Max. 10mm
(0.39")
Max. 52mm
(2.05")
Max. 50mm
(1.97")
Max. 22mm
(0.87")
Max. 8mm
(0.32")
18 Nm - 160 lb.in
PST 30...72
PST 85...142
PST 175...300
14
14
1L1
2T1 4T2 6T3
B1 B2 B3
3L2 5L3
40 Nm - 354 lb.in
PSTB 370...470
1L1
2T1 4T2 6T3
3L2 5L3
1L1 3L2 5L3
45 Nm - 443 lb.in
PSTB 570...1050
2T1 4T2 6T3
1L1
2T1 4T2 6T3
B1 B2 B3
3L2 5L3
1L1
2T1 4T2 6T3
B1 B2 B3
3L2 5L3
1SFC132050F0001
Figure 5: Tightening torques and cable sizes.